Invention Grant
- Patent Title: Data storage snapshot with reduced copy-on-write
- Patent Title (中): 数据存储快照与减少的写时复制
-
Application No.: US12552460Application Date: 2009-09-02
-
Publication No.: US08645647B2Publication Date: 2014-02-04
- Inventor: Amir Sasson , Gil Sasson , Michael Sternberg , Uri Wolloch
- Applicant: Amir Sasson , Gil Sasson , Michael Sternberg , Uri Wolloch
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: VanLeeuwen & VanLeeuwen
- Agent Terrence J. Carroll
- Main IPC: G06F12/00
- IPC: G06F12/00
Abstract:
Producing snapshots of data stored on a data storage device, the method including producing a first snapshot of data stored in a set of data storage units on a data storage device, where the first snapshot is allowed to include data written to the set of data storage units during the production of the first snapshot, and producing a second snapshot of the data stored in the set of data storage units on the data storage device, where the production of the second snapshot is begun after the completion of the first snapshot, and where the second snapshot includes only data present in the set of data storage units before the production of the second snapshot is begun.
Public/Granted literature
- US20110055500A1 Data Storage Snapshot With Reduced Copy-On-Write Public/Granted day:2011-03-03
Information query
